WO2015170297A2 - Device for the diffusion of sound and method for the realization of same - Google Patents

Device for the diffusion of sound and method for the realization of same Download PDF

Info

Publication number
WO2015170297A2
WO2015170297A2 PCT/IB2015/053389 IB2015053389W WO2015170297A2 WO 2015170297 A2 WO2015170297 A2 WO 2015170297A2 IB 2015053389 W IB2015053389 W IB 2015053389W WO 2015170297 A2 WO2015170297 A2 WO 2015170297A2
Authority
WO
WIPO (PCT)
Prior art keywords
sound
diffusion
loudspeaker
supporting element
source unit
Prior art date
Application number
PCT/IB2015/053389
Other languages
French (fr)
Other versions
WO2015170297A3 (en
Inventor
Matteo PANINI
Original Assignee
Ixoost S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ixoost S.R.L. filed Critical Ixoost S.R.L.
Publication of WO2015170297A2 publication Critical patent/WO2015170297A2/en
Publication of WO2015170297A3 publication Critical patent/WO2015170297A3/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
    • H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers

Definitions

  • the present invention relates to a device for the diffusion of sound, particularly for the diffusion of music, and to a method for the realization of the device itself
  • the systems for the diffusion of sound known today are made using components specially designed for this purpose, in order to optimize the quality of sound and therefore to play high fidelity music.
  • Such systems of known type are generally composed of a supporting structure, one or more loudspeakers, a source unit of the sound and connection means for connecting the source unit to the loudspeakers.
  • the main aim of the present invention is to provide an acoustic device that involves the use of discharge collectors of motor vehicles as an active and functional part for the diffusion of sound, while ensuring at the same time high quality of the same.
  • one object of the present invention is therefore to provide a device for the diffusion of sound involving the use of discharge collectors arising from motor vehicles and at the same time allowing to diffuse sound harmoniously.
  • the present invention therefore proposes to make the discharge collectors arising from motor vehicles, made of different materials from those generally used for acoustic devices, such as plastic, wood, MDF, etc ... suitable for the diffusion of sound.
  • One object of the present invention is to optimize the quality of the sound delivered, both at high and low frequencies.
  • Yet another object is to provide a device for the diffusion of sound that, besides being functionally efficient, has innovative features aimed at raising the aesthetic perception of the model, so as to be more attractive and appealing for the users.
  • Figure 1 is an axonometric view of a device according to the invention.
  • Figure 2 is an enlarged view, in section, of a detail of the discharge collector of the device of Figure 1;
  • Figure 3 is an enlarged view, in section, of a detail of the supporting element of the device of Figure 1.
  • reference number 1 is a device for the diffusion of sound, particularly for the diffusion of music.
  • the device 1 comprises a supporting structure 2, which defines a resting plane for the positioning of the device itself on a holding surface, associable with a source unit 3 of the sound.
  • the supporting structure 2 has connection means to an external source unit 3, such as an electronic device adapted to contain music or sound files, e.g. the type of a phone, a smart phone or a music player.
  • an external source unit 3 such as an electronic device adapted to contain music or sound files, e.g. the type of a phone, a smart phone or a music player.
  • connection means may be the type of a connector associable with a removable source unit 3 or they may be of the Wi-Fi type for the wireless connection to a source unit 3 that may be arranged also at a distance from the device 1.
  • the source unit 3 may be of the integrated type, and therefore locked together with the supporting structure 2, such as a CD/MP3 player.
  • the device 1 also comprises diffusion means 4 of the sound, associated with the supporting structure 2, and connection means, not shown in detail in the illustrations, of the source unit 3 to the diffusion means themselves.
  • connection means are of the electric type and are adapted to transfer the electric signal delivered from the source unit 3 to the diffusion means 4, which as is known are adapted to convert such electric signal into sound.
  • the diffusion means 4 of the sound comprise a discharge collector 5 locked together with the supporting structure 2 and which defines at least a hollow channel 6 having at least a front opening 7 facing outwards and adapted to house at least a loudspeaker 13, and at least a rear opening 9 which is free for the output of the sound generated by the loudspeaker itself.
  • free referred to the rear opening 9 is meant that the latter is of the through type and therefore free of any obstacle that may hinder the passage of the sound waves passing through the hollow channel 6.
  • At least a portion of the hollow channel 6 has a silica-based surface coating 11, adapted to facilitate the smoothness of sound waves.
  • such surface coating 11 is of the self-leveling nanostructured silica- based type, which crosslinks in a sol-gel process with the moisture present in the air.
  • nanostructured is meant a modified structure at the molecular level, while by the term “self-leveling” is meant the property of positioning on a laying substrate.
  • the device 1 comprises at least a closing element 12 fitted within the hollow channel 6, therefore interposed between the front opening 7 and the rear opening 9, and having at least a calibrated hole 12a for the passage of the sound waves towards the rear opening itself.
  • the discharge collector 5 has a plurality of hollow channels 6 which have respective sections separate from one another, identified with the reference number 6a and each of which defines a respective front opening 7, and a common section 6b, which defines the only rear opening 9.
  • the discharge collector 5 has a union 8 that defines the common section 6b of the hollow channels 6 and the rear opening 9.
  • the above-mentioned surface coating affects at least one of the separate sections 6a and the common section 6b.
  • the silica-based surface coating according to the invention affects the hollow channels 6 for their entire extension.
  • the closing element 12 is preferably positioned along the common section 6b defined by the union 8.
  • the front openings 7 are substantially aligned to one another and the further opening 9 is arranged at a higher level with respect to the front openings themselves, although geometries of a different type cannot be ruled out.
  • the diffusion means 4 also comprise at least a supporting element 10 associated with the discharge collector 5 in correspondence of the front opening 7 and defining a housing seat within which a loudspeaker 13 is fitted.
  • the supporting element 10 is made of a material comprising aluminum, such as an aluminum alloy.
  • a protective layer 14 comprising a layer of aluminum oxide (A12O3) and silver molecules, identified in Figure 3 with the reference numbers 14a and 14b, respectively.
  • the silver molecules 14b are inserted within the porosity of the layer of aluminum oxide 14a, this is done by means of the method of treatment described later in the present description.
  • the surfaces of the supporting element 10 have the above mentioned protective layer 14 and comprising aluminum oxide and silver molecules.
  • the protective layer 14 defines a substantially homogeneous surface, i.e. without interruption, so as to improve the smoothness of sound waves.
  • the diffusion means 4 comprise a plurality of loudspeakers 13, each of which is inserted within a respective supporting element 10 in turn arranged in correspondence of a respective front opening 7.
  • each supporting element 10 has the protective layer 14 both on the surfaces defining the housing seat of the relevant loudspeaker 13 and on the surfaces facing outwards.
  • the method making the subject of the present invention provides first of all the necessary components for obtaining the device 1 for the diffusion of sound according to what is described above.
  • the supporting structure 2 associable with the source unit 3 of the sound, the diffusion means 4 of the sound, the connection means between the source unit 3 and the diffusion means 4, the discharge collector 5 and at least a loudspeaker 13 are provided.
  • At least a supporting element 10 is also provided intended to be associated with the discharge collector 5 and adapted to support the loudspeaker 13.
  • the method making the subject of the present invention comprises a coating step of at least a portion of the hollow channel 6 defined by the discharge collector 5 by means of a silica-based substance, so as to define the surface coating 11 adapted to reduce the friction coefficient of the hollow channel itself and thus facilitate the passage of the sound waves through it.
  • This coating step is performed through at least a technique selected from the group comprising: painting, spin-coating, dip-coating, spray coating and electrophoresis.
  • a step of hard anodic oxidation is also performed at least of the surfaces of each supporting element 10 which define the housing seat of the respective loudspeaker 13.
  • the surfaces of the supporting element 10 facing outwards undergo a step of hard anodic oxidation.
  • the surfaces treated through anodic oxidation undergo a step of galvanic treatment with silver molecules 14b, in particular Ag+ ions, adapted to seal the pores present in the layer of aluminum oxide 14a defined by means of the step of anodic oxidation described above.
  • the Ag+ ions are inserted within the porosities on the layer of aluminum oxide 14a going to define a protective layer 14 substantially homogeneous and without interruption and adapted to speed up the output of sound waves from the corresponding loudspeaker 13.
  • the presence of the silica-based coating applied on the inside of the hollow body defined by the discharge collector allows to make significantly smoother the passage of the sound waves inside the collector itself.
  • the protective layer based on aluminum oxide and silver molecules applied on the supporting element allows to improve the smoothness of fluxes.

Abstract

A device (1) for the diffusion of sound comprising a supporting structure (2) associable with a source unit (3) of the sound, diffusion means (4) of the sound associated with the supporting structure (2), connection means between the source unit (3) and the diffusion means (4), where the diffusion means (4) comprise a discharge collector (5) defining at least a hollow channel (6) having at least an opening (7), facing outwards and adapted to house at least a loudspeaker (13), and at least a further opening (9) which is free for the output of the sound generated by the loudspeaker, and where at least a portion of the hollow channel (6) has a silica-based surface coating (11) adapted to facilitate the sliding of the sound waves.

Description

DEVICE FOR THE DIFFUSION OF SOUND AND METHOD FOR THE REALIZATION OF SAME
Technical Field
The present invention relates to a device for the diffusion of sound, particularly for the diffusion of music, and to a method for the realization of the device itself
Background Art
Several devices for the diffusion of sound are known, such as stereo, Hi-Fi systems or the like, which may have different technical specifications as well as several overall dimensions.
The systems for the diffusion of sound known today are made using components specially designed for this purpose, in order to optimize the quality of sound and therefore to play high fidelity music.
Such systems of known type are generally composed of a supporting structure, one or more loudspeakers, a source unit of the sound and connection means for connecting the source unit to the loudspeakers.
Description of the Invention
The main aim of the present invention is to provide an acoustic device that involves the use of discharge collectors of motor vehicles as an active and functional part for the diffusion of sound, while ensuring at the same time high quality of the same.
Within this aim, one object of the present invention is therefore to provide a device for the diffusion of sound involving the use of discharge collectors arising from motor vehicles and at the same time allowing to diffuse sound harmoniously.
The present invention therefore proposes to make the discharge collectors arising from motor vehicles, made of different materials from those generally used for acoustic devices, such as plastic, wood, MDF, etc ... suitable for the diffusion of sound.
One object of the present invention is to optimize the quality of the sound delivered, both at high and low frequencies.
Yet another object is to provide a device for the diffusion of sound that, besides being functionally efficient, has innovative features aimed at raising the aesthetic perception of the model, so as to be more attractive and appealing for the users.
The above mentioned objects are achieved by the present device for the diffusion of sound according to claim 1 and by the present method for the realization of a device for the diffusion of sound according to claim 7.
Brief Description of the Drawings
Other characteristics and advantages of the present invention will become better evident from the description of a preferred but not exclusive embodiment of a device for the diffusion of sound, illustrated by way of an indicative, but non- limiting example in the accompanying drawings wherein:
Figure 1 is an axonometric view of a device according to the invention;
Figure 2 is an enlarged view, in section, of a detail of the discharge collector of the device of Figure 1;
Figure 3 is an enlarged view, in section, of a detail of the supporting element of the device of Figure 1.
Embodiments of the Invention
With particular reference to such figures, globally indicated with reference number 1 is a device for the diffusion of sound, particularly for the diffusion of music.
The device 1 comprises a supporting structure 2, which defines a resting plane for the positioning of the device itself on a holding surface, associable with a source unit 3 of the sound.
More particularly, in the embodiment shown in figure 1, the supporting structure 2 has connection means to an external source unit 3, such as an electronic device adapted to contain music or sound files, e.g. the type of a phone, a smart phone or a music player.
The connection means may be the type of a connector associable with a removable source unit 3 or they may be of the Wi-Fi type for the wireless connection to a source unit 3 that may be arranged also at a distance from the device 1.
In an alternative embodiment, not shown in the figures, the source unit 3 may be of the integrated type, and therefore locked together with the supporting structure 2, such as a CD/MP3 player.
The device 1 also comprises diffusion means 4 of the sound, associated with the supporting structure 2, and connection means, not shown in detail in the illustrations, of the source unit 3 to the diffusion means themselves.
More in detail, the connection means are of the electric type and are adapted to transfer the electric signal delivered from the source unit 3 to the diffusion means 4, which as is known are adapted to convert such electric signal into sound.
According to the invention, the diffusion means 4 of the sound comprise a discharge collector 5 locked together with the supporting structure 2 and which defines at least a hollow channel 6 having at least a front opening 7 facing outwards and adapted to house at least a loudspeaker 13, and at least a rear opening 9 which is free for the output of the sound generated by the loudspeaker itself.
By the term "free" referred to the rear opening 9 is meant that the latter is of the through type and therefore free of any obstacle that may hinder the passage of the sound waves passing through the hollow channel 6.
According to the invention, furthermore, at least a portion of the hollow channel 6 has a silica-based surface coating 11, adapted to facilitate the smoothness of sound waves.
Preferably, such surface coating 11 is of the self-leveling nanostructured silica- based type, which crosslinks in a sol-gel process with the moisture present in the air.
By the term "nanostructured" is meant a modified structure at the molecular level, while by the term "self-leveling" is meant the property of positioning on a laying substrate.
The surface coating 11 thus formed, with a thickness of a few microns, allows to significantly reduce the friction coefficient of the hollow channel 6, as it reduces its internal roughness, consequently facilitating smoothness of fluxes. Advantageously, the device 1 comprises at least a closing element 12 fitted within the hollow channel 6, therefore interposed between the front opening 7 and the rear opening 9, and having at least a calibrated hole 12a for the passage of the sound waves towards the rear opening itself.
By adjusting the diameter of the hole 12a it is possible to optimize the quality of the sound delivered by the device 1.
In the embodiment shown in the figures, the discharge collector 5 has a plurality of hollow channels 6 which have respective sections separate from one another, identified with the reference number 6a and each of which defines a respective front opening 7, and a common section 6b, which defines the only rear opening 9.
More particularly, the discharge collector 5 has a union 8 that defines the common section 6b of the hollow channels 6 and the rear opening 9.
In the particular embodiment of Figure 1, the above-mentioned surface coating affects at least one of the separate sections 6a and the common section 6b.
Preferably, the silica-based surface coating according to the invention affects the hollow channels 6 for their entire extension.
In the embodiment shown, the closing element 12 is preferably positioned along the common section 6b defined by the union 8.
As can be seen from Figure 1, the front openings 7 (identified in Figure 1) are substantially aligned to one another and the further opening 9 is arranged at a higher level with respect to the front openings themselves, although geometries of a different type cannot be ruled out.
Conveniently, the diffusion means 4 also comprise at least a supporting element 10 associated with the discharge collector 5 in correspondence of the front opening 7 and defining a housing seat within which a loudspeaker 13 is fitted. Advantageously, the supporting element 10 is made of a material comprising aluminum, such as an aluminum alloy.
Preferably, the surfaces of the supporting element 10 that define the housing seat of the respective loudspeaker 13 and which are communicating with the hollow channel 6 are coated by a protective layer 14 comprising a layer of aluminum oxide (A12O3) and silver molecules, identified in Figure 3 with the reference numbers 14a and 14b, respectively.
More in detail, the silver molecules 14b are inserted within the porosity of the layer of aluminum oxide 14a, this is done by means of the method of treatment described later in the present description.
In a preferred embodiment, also the surfaces of the supporting element 10 have the above mentioned protective layer 14 and comprising aluminum oxide and silver molecules.
The protective layer 14 defines a substantially homogeneous surface, i.e. without interruption, so as to improve the smoothness of sound waves.
In the embodiment represented in the figures, the diffusion means 4 comprise a plurality of loudspeakers 13, each of which is inserted within a respective supporting element 10 in turn arranged in correspondence of a respective front opening 7.
Preferably, each supporting element 10 has the protective layer 14 both on the surfaces defining the housing seat of the relevant loudspeaker 13 and on the surfaces facing outwards.
The method according to the invention is described below for the realization of a device for the diffusion of sound according to described above.
The method making the subject of the present invention provides first of all the necessary components for obtaining the device 1 for the diffusion of sound according to what is described above.
More particularly, the supporting structure 2, associable with the source unit 3 of the sound, the diffusion means 4 of the sound, the connection means between the source unit 3 and the diffusion means 4, the discharge collector 5 and at least a loudspeaker 13 are provided.
Preferably at least a supporting element 10 is also provided intended to be associated with the discharge collector 5 and adapted to support the loudspeaker 13.
The method making the subject of the present invention comprises a coating step of at least a portion of the hollow channel 6 defined by the discharge collector 5 by means of a silica-based substance, so as to define the surface coating 11 adapted to reduce the friction coefficient of the hollow channel itself and thus facilitate the passage of the sound waves through it.
This coating step is performed through at least a technique selected from the group comprising: painting, spin-coating, dip-coating, spray coating and electrophoresis.
Advantageously, a step of hard anodic oxidation is also performed at least of the surfaces of each supporting element 10 which define the housing seat of the respective loudspeaker 13.
Preferably, also the surfaces of the supporting element 10 facing outwards undergo a step of hard anodic oxidation.
Following this application, a layer of aluminum oxide (A12O3) 14a is formed on the treated surfaces.
The surfaces treated through anodic oxidation undergo a step of galvanic treatment with silver molecules 14b, in particular Ag+ ions, adapted to seal the pores present in the layer of aluminum oxide 14a defined by means of the step of anodic oxidation described above.
More in detail, following the step of galvanic treatment, the Ag+ ions are inserted within the porosities on the layer of aluminum oxide 14a going to define a protective layer 14 substantially homogeneous and without interruption and adapted to speed up the output of sound waves from the corresponding loudspeaker 13.
In practice it has been observed how the described invention achieves the proposed objects and in particular the fact is underlined that the device making the subject of the present invention allows to reduce the friction that sound waves meet during their path thereby improving the harmony perceived and leading to an attenuation of all frequencies.
In particular, the presence of the silica-based coating applied on the inside of the hollow body defined by the discharge collector allows to make significantly smoother the passage of the sound waves inside the collector itself.
Similarly, also the protective layer based on aluminum oxide and silver molecules applied on the supporting element allows to improve the smoothness of fluxes.

Claims

1) Device (1) for the diffusion of sound comprising:
- a supporting structure (2) associable with a source unit (3) of the sound;
- diffusion means (4) of the sound associated with said supporting structure (2);
- connection means between said source unit (3) and said diffusion means (4); characterized in that said diffusion means (4) comprise:
a discharge collector (5) defining at least a hollow channel (6) having at least an opening (7), facing outwards and adapted to house at least a loudspeaker (13), and at least a further opening (9) which is free for the output of the sound generated by said loudspeaker;
and in that at least a portion of said hollow channel (6) has a silica-based surface coating (11) adapted to facilitate the sliding of the sound waves.
2) Device (1) according to claim 1, characterized in that said surface coating (11) is self-leveling nano structured silica-based.
3) Device (1) according to claim 1 or 2, characterized in that it comprises at least a closing element (12) fitted within said hollow channel (6) and having at least a calibrated hole (12a) for the passage of the sound waves towards said further opening (9).
4) Device (1) according to one or more of the preceding claims, characterized in that it comprises at least a supporting element (10) associated with said discharge collector (5) in correspondence of said opening (7) and defining a housing seat within which is fitted said loudspeaker (13), said supporting element (10) being made of a material comprising aluminum.
5) Device according to claim 4, characterized in that at least the surfaces of said supporting element (10) defining said housing seat have a protective layer (14) comprising aluminum oxide (14a) and silver molecules (14b).
6) Device (1) according to claim 4 or 5, characterized in that the surfaces of said supporting element (10) facing outwards have a protective layer (14) comprising aluminum oxide (14a) and silver molecules (14b).
7) Method for the realization of a device for the diffusion of sound, characterized in that it comprises the following steps of: providing a supporting structure (2) associable with a source unit (3) of the sound, diffusion means (4) of the sound associable with said supporting structure (2), connection means between said source unit (3) and said diffusion means (4) and a discharge collector (5) defining at least a hollow channel (6) having at least an opening (7) adapted to house at least a loudspeaker (13), and at least a further opening (9) which is free for the output of the sound generated by said loudspeaker (13);
coating at least a portion of said hollow channel (6) by means of a silica- based substance to facilitate the sliding of the sound waves;
- assembling said supporting structure (2), said source unit (3), said diffusion means (4), said discharge collector (5) and said loudspeaker (13) to form a device (1) for the diffusion of sound.
8) Method according to claim 7, characterized in that said coating is performed through a technique selected from the group comprising: painting, spin-coating, dip-coating, spray coating and electrophoresis.
9) Method according to claim 7 or 8, characterized in that it comprises at least a supporting element (10) associable with said discharge collector (5) in correspondence of said opening (7) and defining a housing seat within which is fitted said loudspeaker (13), said supporting element (10) being made of a material comprising aluminum, and in that it comprises a step of anodic oxidation at least of the surfaces of said supporting element (10) defining said housing seat.
10) Method according to claim 9, characterized in that it comprises at least a step of anodic oxidation of at least one of the surfaces of said supporting element (10) facing outwards.
11) Method according to claim 9 or 10, characterized in that it comprises at least a step of galvanic treatment with silver molecules of the surfaces undergoing said step of anodic oxidation.
PCT/IB2015/053389 2014-05-08 2015-05-08 Device for the diffusion of sound and method for the realization of same WO2015170297A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO20140127 2014-05-08
ITMO2014A000127 2014-05-08

Publications (2)

Publication Number Publication Date
WO2015170297A2 true WO2015170297A2 (en) 2015-11-12
WO2015170297A3 WO2015170297A3 (en) 2016-01-28

Family

ID=51265764

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2015/053389 WO2015170297A2 (en) 2014-05-08 2015-05-08 Device for the diffusion of sound and method for the realization of same

Country Status (1)

Country Link
WO (1) WO2015170297A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016176716A1 (en) * 2015-05-07 2016-11-10 Acoustic 3D Holdings Ltd Acoustical diffusion manifold
KR102602666B1 (en) * 2023-03-29 2023-11-15 주식회사 소노볼트 Sound diffuser

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040177609A1 (en) * 2001-12-07 2004-09-16 Moore Dan T. Insulated exhaust manifold having ceramic inner layer that is highly resistant to thermal cycling
DE102012200712B4 (en) * 2012-01-19 2015-07-09 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust device for an internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016176716A1 (en) * 2015-05-07 2016-11-10 Acoustic 3D Holdings Ltd Acoustical diffusion manifold
US10419846B2 (en) 2015-05-07 2019-09-17 Acoustic 3D Holdings Ltd Acoustical diffusion manifold
KR102602666B1 (en) * 2023-03-29 2023-11-15 주식회사 소노볼트 Sound diffuser

Also Published As

Publication number Publication date
WO2015170297A3 (en) 2016-01-28

Similar Documents

Publication Publication Date Title
JP5410603B2 (en) System, method, apparatus, and computer-readable medium for phase-based processing of multi-channel signals
CN102047688B (en) Systems, methods, and apparatus for multichannel signal balancing
KR102331233B1 (en) Sports headphones with situational awareness
US9735746B2 (en) Automatic loudness control
WO2005094157A3 (en) Glasses frame comprising an integrated acoustic communication system for communication with a mobile radio appliance, and corresponding method
CN108093327B (en) A kind of method, apparatus and electronic equipment for examining earphone to wear consistency
US20120027227A1 (en) Personalized adjustment of an audio device
WO2006116024A3 (en) Systems, methods, and apparatus for gain factor attenuation
EP1727390A3 (en) Supra-aural headphone noise reducing
WO2010002676A3 (en) Multi-microphone voice activity detector
US20090175484A1 (en) Embedded audio system in distributed acoustic sources
KR102341705B1 (en) Speaker emulation of a microphone for wind detection
US7684583B2 (en) In-ear type and ear-plug type earphone with adjustable volume of front chamber between speaker and housing
CN204518050U (en) A kind of vehicle-mounted high directional loudspeaker system
EP2424269A3 (en) Earphone having sound insulation means
WO2015170297A2 (en) Device for the diffusion of sound and method for the realization of same
US20160055862A1 (en) System and method for addressing acoustic signal reverberation
EP2693636A1 (en) Automatic loudness control
AU2003238975A1 (en) Noise cancellation system and headphone therefor
US20130146387A1 (en) Dual bore canalphone system
Li et al. A noise reduction system based on hybrid noise estimation technique and post-filtering in arbitrary noise environments
AU2003275648A1 (en) Dynamic gain equalizer
EP2693637A1 (en) Automatic loudness control
CN205793176U (en) A kind of tuning system of earphone
WO2021163834A1 (en) Manufacture of a grille element for a media playback device

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15732350

Country of ref document: EP

Kind code of ref document: A2